A psychological horror film establishes seemingly normal settings and characters to create an unsettling atmosphere. Characters are often left undefined at first to add mystery. The main character is usually a woman to emphasize vulnerability. Common character types include young adults, the mentally or emotionally unstable, goths, and detectives. Music, sounds of pain and suffering, and a slow, well-paced plot enhance tension and suspense. Low lighting, fast editing during dramatic scenes, and handheld camera shots further unsettle the audience. Common iconography includes haunted houses, symbols of death, masks, screaming victims, and phallic weapons.